Download o Superior Labrum Anteriorposterior (SLAP) Lesion (Torn Labrum) o

o Superior Labrum Anteriorposterior (SLAP) Lesion (Torn Labrum)
 SLAP lesions are tears in the superior glenoid labrum near the attachment site for the
long head of the biceps brachii tendon. Increased tension on this tendon causes it to
pull away from the labrum, subsequently resulting in a tear. Surgery is usually required.
(1)
o Acromioclavicular (AC) Sprain
 Symptoms – pain at the AC joint and possibly upper trapezius/upper scapula due to
trapezius spasm, superior displacement of the clavicle, joint deformity

Causes – blunt trauma to AC joint, longitudinal force applied through clavicle such as
falling on outstretch arm

Predispositions – none
(1)
o Sternoclavicular (SC) Sprain
 Symptoms – pain at SC joint, posterior dislocation necessitates medical emergency due
to structures beneath the joint such as the subclavian artery, subclavian vein, trachea,
and esophagus
Figure 9

Causes – longitudinal force applied through clavicle (falling on
outstretched hand), or forceful distraction of arm at the distal
shoulder complex

Predispositions – none
(1)
o Shoulder Impingement
 Symptoms – pain beneath the acromion process radiating to the
lateral arm


Causes – repetitive overhead motion
Predispositions – tight posterior capsule and ligamentous tissues,
irregularly shaped acromion (curved or hooked), subacromial
spurs, rotator cuff weakness
(1)
o Shoulder Dislocation
 Symptoms – displacement of humeral head relative to glenoid fossa/normal joint
position. Subluxation is a momentary dislocation of shoulder that does not require
external force to relocate

Causes – falling on out stretched hand, posterior blunt trauma, the most common joint
position for dislocation/subluxation is abduction with external rotation

Predispositions – Weak shoulder stabilizers
(1)